Boron Nitride Ceramic Bearing Rollers from United States
Boron nitride ceramic rollers for vacuum laboratory systems and chemical reactors. Hexagonal BN structure fired for lubricity and thermal shock resistance in technical uses, these rollers are classifiable under 6909.19.90 as other ceramic wares for technical uses.
Duty Rate — United States → Canada
4.5%
Import Tips
• Confirm the rollers are fired after shaping and not just pressed, as per Chapter 69 note 1
• Prepare technical data on the vacuum or chemical reactor application to support classification
• Check if the rollers are part of a larger bearing assembly that might be classified under heading 8482